We build React applications, dashboards and design systems that stay fast and easy to change as they grow, and provide React developers who work inside your team.
1// Typed, tested and fast with large data2export function OrdersTable({ status }: Props) {3 const { data, isLoading } = useOrders({ status });4 const rows = useMemo(() => toRows(data), [data]);56 if (isLoading) return <TableSkeleton rows={8} />;7 return (8 <DataTable rows={rows} virtualized9 onRowClick={(row) => openOrder(row.id)} />10 );11}Worked with
Problems we solve
React makes it easy to start. Without structure, large React apps become slow, inconsistent and risky to change.
Tables, forms and dashboards that were fine in a demo lag with thousands of rows.
Buttons, forms and spacing are reinvented on each page, so the product feels inconsistent.
No types, no tests and tangled state mean every change risks breaking something else.
Your roadmap is longer than your team, and hiring good React developers takes months.
Our solution
We bring the practices that keep React codebases healthy: TypeScript, a shared component library, clear state management, tests and performance budgets.
A design system of reusable, accessible components so every screen is consistent and new features are faster to build.
Virtualised lists, code splitting, memoisation where it matters and server rendering when SEO or first load needs it.
TypeScript, tests, documentation and code reviews, so your developers can work in the codebase confidently.
React development services
React JS development services for products, platforms and internal tools.
Single-page and server-rendered React applications for customers and staff, with authentication, roles, forms, data tables and integrations, built with TypeScript from day one.
Data-heavy dashboards and admin panels with charts, filters, exports and real-time updates that stay fast with large datasets.
A shared library of accessible, documented React components that makes your product consistent and speeds up every future feature.
Move from jQuery, AngularJS or an old React codebase to modern React and TypeScript, one screen at a time, without stopping feature work.
Find and fix what makes your React app slow: unnecessary re-renders, oversized bundles, slow lists and blocking data fetching.
Hire React developers who join your team, follow your process and ship on your roadmap, backed by our wider design, back-end and DevOps team.
What you get
These are the outcomes we design every React project around.
Screens that stay quick as data grows.
One component system across every screen.
Types and tests that catch problems early.
Documented code new developers understand.
Keyboard and screen-reader friendly components.
Code in your repository, documented for your team.
Why us
Our own products, including Classify-X and ZeroVault, are built with React and Next.js.
We choose plain React or Next.js based on your product's needs, not habit.
Dedicated developers who work in your tools and process.
A proposal with scope and a customised quotation before work starts.
A free strategy call, then a written proposal with a customised quotation.
Our approach
Open each step to see what it covers.
New product: users and flows. Existing app: an audit of structure, performance and risks.
React or Next.js, state management, data fetching, component system and testing approach, agreed in writing.
Core components and tokens built first, so screens are assembled quickly.
Features delivered with code reviews, tests and preview deployments.
Profiling with real data, bundle checks and accessibility testing.
Documentation and knowledge transfer, or continued development.
Common React problems
Already have a React app? These are common problems and how we fix them.
Technology
Tools from our own React codebases, chosen per project.
React vs Next.js
Both use React. The difference is what the framework adds around it.
| Criteria | React (single-page app) | Next.js | Both together |
|---|---|---|---|
| Best for | Apps behind a login, dashboards, internal tools | Public, search-led sites and full-stack products | A public site plus an app |
| SEO | Not a priority | Built in | Next.js for public pages |
| Server | Static hosting is enough | Node.js server or a platform like Vercel | Depends on the split |
| First load | After JavaScript loads | Server-rendered HTML | Fast public pages, rich app |
Not sure? We'll recommend the right setup on the strategy call. See our Next.js development page for SEO-led projects.
Where React fits
Common React projects across industries.
Customer-facing apps with roles, settings and billing.
See the workLive data, KPIs and reports for management teams.
See the workSelf-service orders, documents and support.
See the workLearning, assessments and student portals.
See the workDealer portals and quotation tools.
See the workAdmin panels and workflow tools that replace spreadsheets.
How we work together
Every engagement starts with a written proposal and a customised quotation.
Design and development of an agreed scope with previews at every check-in.
Best for: New apps and rebuilds
Developers who join your team and ship on your roadmap.
Best for: Product teams needing capacity
A focused engagement to fix performance, structure and testing.
Best for: Existing React apps
Our product
Guide
React is an open-source JavaScript library for building user interfaces from reusable components. It is maintained by Meta and is one of the most widely used front-end technologies, which makes React developers relatively easy to find.
React focuses on the interface. For routing, server rendering and data loading, teams add a framework such as Next.js or use React with tools like Vite.
React suits interactive applications: dashboards, portals, editors and tools where users spend time working. Its component model makes complex interfaces manageable and consistent.
For public, search-led websites, React is usually used through Next.js so pages are rendered on the server.
Large React codebases stay healthy with TypeScript, a shared component library, a clear approach to state and data fetching, and tests for critical flows.
Code reviews and documentation matter as much as the code itself, especially when new developers join.
Most React performance problems come from re-rendering too much, loading too much JavaScript, or rendering very long lists. Profile with real data before optimising.
Virtualise long lists, split code by route, cache server data, and memoise only where profiling shows a benefit.
In-house hiring gives long-term ownership but takes time. Freelancers suit small, well-defined tasks. A dedicated team from a development company gives you capacity quickly, with design, back-end and DevOps support behind it.
Whichever you choose, make sure code lives in your repository and is documented.
TypeScript adds types to JavaScript, catching many errors before code runs and making large codebases easier to change. For products that will grow and be worked on by several developers, it is usually worth it.
Code reviews, consistent formatting, linting and automated tests on important flows keep quality steady as the team and codebase grow.
Much of the complexity in React apps comes from managing data: what is loaded from the server, what is cached, and what changes as users interact. Choosing clear patterns early, and keeping server data separate from local interface state, avoids tangled code later.
Libraries for data fetching and caching handle loading states, errors and refreshing data, so developers don't rebuild them for every screen.
A design system is a shared set of components, such as buttons, forms, tables and dialogs, with consistent styles and behaviour. It makes new screens faster to build and keeps the product consistent.
Start small with the components you use most, document them, and grow the system as the product grows.
When we take over a React app, we start with an audit: dependencies and their versions, structure, test coverage, performance and known bugs. That shows what to fix first and what can wait.
Most codebases improve best through steady, incremental refactoring alongside new features, rather than a risky full rewrite.
Costs depend on scope, number of screens and roles, design system work, integrations, performance and testing needs, migration effort and whether you need a project team or dedicated developers.
We don't publish fixed prices or packages. After a strategy call, we send a written proposal with a customised quotation.
Before you talk to us
It designs and builds web applications with React, from dashboards and portals to full products, and often provides React developers who work with your team.
Plain React suits apps behind a login. Next.js suits public, search-led sites and full-stack products. Many products use both: Next.js for public pages and React for the app.
Yes. We migrate from jQuery, AngularJS or older React code incrementally, screen by screen, while feature work continues.
Yes. We profile real screens, fix re-renders, reduce bundle size, virtualise lists and improve data fetching.
Yes, on every new project, and we can introduce it gradually into existing codebases.
Yes. Our React developers can join your team, work in your tools and follow your process.
Yes. We build documented, accessible component libraries with design tokens that your whole team can use.
Yes. The code lives in your repository and belongs to your company.
Yes. We add tests for important flows and components, with the level of coverage agreed in the proposal.
Yes. We start with an audit, then stabilise and improve it step by step.
Yes. We plan upgrades of React and its dependencies in steps, testing as we go.
It depends on scope, screens, integrations, testing and the engagement model. We do not publish fixed prices; share your requirements and we will send a customised quotation.
Contact us
Share a few details. An engineer reviews every enquiry and gets back to you to set up a call.